Thank you for your advice. It sounds like if impacts aren't a requirement
then I would not need to run a new PQR but if they are, then I might be able
to convince the client that E7018-1 should be accepted since it has a lower
temperature impact.
Thanks.
-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of babu k
Sent: Sunday, July 19, 2009 8:37 PM
To: materials-welding@googlegroups.com
Subject: [MW:2717] Re: New PQR for 7018 or 7016 if using 7018-1?
Hi,
With ref. table 4.6 of D1.1 clause 3 , the change in the AWS classification
is essential variable.
As per my understanding, E7018-1 is impact at -45 Deg.Cel; If you want to
use the E7018 , you need to qualify the New PQR to prove the impact
requirement at -45 Deg.Cel
Since E7018 impact is -27 deg. cel. , ultimately you need to qualify.
It slightly conflict with code, but you need to resolve logically.
Regards,
K.Babu
Singapore
On Sat, Jul 18, 2009 at 7:42 PM, Ali Asghari <asghariali@rocketmail.com>
wrote:
hi ikaria
according to table 4.5,4.6, a new PQR ISN'T REQUIRED..
________________________________
From: ikaria73 <ikaria73@hotmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Thursday, July 16, 2009 4:44:25 PM
Subject: [MW:2698] New PQR for 7018 or 7016 if using 7018-1?
I'm a little unclear of the AWS D1.1 code. If I have already run a
PQR with E7018-1, do I need to run a new PQR if I intend to use
E7018
or E7016 in the same joint?
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